For a wedding I would be choosing a little faster camera. You have a very short time frame with which you can take photographs that will last them a life time. Something with a power winder or use a T90. Sure the FTb is a great camera but it is a FEW years old. Just your luck to get a few shots and the shutter jams. I can happen.. Murphys law works for photographers too. Even with all that equipment I would seriously get some hands on experience for such a photo shoot.